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Ignition System - 4-CYL: Overhaul: Disassembly

  1. On distributors with integral ignition coils, detach 4-wire EST connector and wiring connector from cap and turn 4 latches. Remove cap and coil assembly from lower housing. To remove coil, remove coil cover attaching screws, cover, and coil attaching screws. Lift coil with leads from cap.
  2. Remove coil arc seal and clean cap with soft cloth, checking for cracks or other damage.
  3. On vehicles with external coils, remove coil connector and disconnect 4-wire EST connector. Turn 2 latches and lift off distributor cap.
  4. On all models, remove rotor and disconnect pick-up coil leads from HEI-EST module. See Figure. Remove Hall Effect switch (if equipped) by removing 2 attaching screws. Mark distributor shaft and gear shaft.
  5. On models with integral coil, remove magnetic shield. Then remove retaining "C" washer, pick-up coil, magnet and pole piece. Remove 2 module attaching screws and capacitor screw. Lift module, capacitor and harness assembly from distributor housing. Disconnect wiring harness from module.
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